function checkform()
{
	if(!ChkUtil.isNull($F("hiresell_inter"))){alert("请选择是否中介。");$('hiresell_inter').focus();return false;}
	if(!ChkUtil.isNull($F("hiresell_require"))){alert("请输入要求地段。");$('hiresell_require').focus();return false;}
	if(!ChkUtil.isNull($F("hiresell_region"))){alert("请选择小区所在区域。");$('hiresell_region').focus();return false;}
	if(!ChkUtil.isNull($F("hiresell_roomtype"))){alert("请选择户型。");$('hiresell_roomtype').focus();return false;}
	if(!ChkUtil.isNull($F("hiresell_housetype"))){alert("请选择房屋类型。");$('hiresell_housetype').focus();return false;}
	if(!ChkUtil.isNull($F("hiresell_minarea"))){alert("请输入面积最小值。");$('hiresell_minarea').focus();return false;}
	if(!ChkUtil.isDigit($F("hiresell_minarea"))){alert("面积最小值应该为数字。");$('hiresell_minarea').focus();return false;}
	if(!ChkUtil.isNull($F("hiresell_maxarea"))){alert("请输入面积最大值。");$('hiresell_maxarea').focus();return false;}
	if(!ChkUtil.isDigit($F("hiresell_maxarea"))){alert("面积最大值应该为数字。");$('hiresell_maxarea').focus();return false;}
	if( $F("hiresell_minarea") > $F("hiresell_maxarea") ){alert("面积最小值应该小于求面积最大值。");$('hiresell_minarea').focus();return false;}
	if(!ChkUtil.isNull($F("hiresell_fixdegree"))){alert("请选择装修程度。");$('hiresell_fixdegree').focus();return false;}
	if(!ChkUtil.isNull($F("hiresell_floor"))){alert("请输入楼层要求。");$('hiresell_floor').focus();return false;}	
	if(!ChkUtil.isNull($F("hiresell_minprice"))){alert("请输入求租价格最小值。");$('hiresell_minprice').focus();return false;}
	if(!ChkUtil.isDigit($F("hiresell_minprice"))){alert("求租价格最小值应该为数字。");$('hiresell_minprice').focus();return false;}
	if(!ChkUtil.isNull($F("hiresell_maxprice"))){alert("请输入求租价格最大值。");$('hiresell_maxprice').focus();return false;}
	if(!ChkUtil.isDigit($F("hiresell_maxprice"))){alert("求租价格最大值应该为数字。");$('hiresell_maxprice').focus();return false;}	
	if( $F("hiresell_minprice") > $F("hiresell_maxprice") ){alert("求租价格最小值应该小于求租价格最大值。");$('hiresell_minprice').focus();return false;}
	if(!ChkUtil.isNull($F("hiresell_person"))){alert("请输入联系人。");$('hiresell_person').focus();return false;}
	if(!ChkUtil.isNull($F("hiresell_phone"))){alert("请输入联系电话。");$('hiresell_phone').focus();return false;}
}